The thing that irritates me the most about this line of questioning from the media is that the media itself is a big part of the reason why the race between McCain and Obama is so close. If the media truly did it's job of properly vetting McCain, the race wouldn't be close at all. Let's face it, the media wants the race to be close and does everything within it's power to keep it close.
Case in point. Leading up to and during the Democratic National Convention, the question of the day (everyday) was "how much of a 'bounce' will Obama get from the convention?" This question was asked daily if not hourly by the media. And when it appeared initially throughout the week of the DNC that Obama wasn't getting much of a bounce, it was headline news - NO BOUNCE FOR OBAMA!. Then after Obama gave his speach and the polls started to move back up in his favor (even if only slightly) the questions about the impact of the DNC began to fade.
Now contrast this daily/hourly obsession of the convention bounce of Obama versus the non-existant question of whether or not McCain would receive a "bounce" from his convention at all. I don't think I heard or read anything where a pundit or newsreader made one single comment about the RNC and/or the expectation of a bounce for McCain. The question is why the obsession over the poll bounce for one candidate and not the other? It's simple, the media wants the race between Obama and McCain to remain as close as possible. Setting expectations too high for McCain could sink him and the media knows this. So they intentionally stay away from such questions as they relate to McCain.
The media also knows that properly vetting McCain WOULD sink him too.
It's really a shame to see what's going on. I can only hope that Obama will have enough advertising dollars to supplement what the media should be doing on it's own as a public service. But I digress... the media cannot stand the thought of one candidate pulling away. A close race keeps the dollars flowing both in advertising dollars from the campaigns as well as increased ratings. The American Idolization of politics is here... sad but true.